77123840

素因数分解:

$2^8\times 5^1\times {\mathrm{89}}^1\times {\mathrm{677}}^1$

素因数の和:787

約数の個数: 72

約数和(自身を含む): 187087320

約数和(自身を除く): 109963480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 320, 356, 445, 640, 677, 712, 890, 1280, 1354, 1424, 1780, 2708, 2848, 3385, 3560, 5416, 5696, 6770, 7120, 10832, 11392, 13540, 14240, 21664, 22784, 27080, 28480, 43328, 54160, 56960, 60253, 86656, 108320, 113920, 120506, 173312, 216640, 241012, 301265, 433280, 482024, 602530, 866560, 964048, 1205060, 1928096, 2410120, 3856192, 4820240, 7712384, 9640480, 15424768, 19280960, 38561920, 77123840]

約数ペア:

[(1, 77123840), (2, 38561920), (4, 19280960), (5, 15424768), (8, 9640480), (10, 7712384), (16, 4820240), (20, 3856192), (32, 2410120), (40, 1928096), (64, 1205060), (80, 964048), (89, 866560), (128, 602530), (160, 482024), (178, 433280), (256, 301265), (320, 241012), (356, 216640), (445, 173312), (640, 120506), (677, 113920), (712, 108320), (890, 86656), (1280, 60253), (1354, 56960), (1424, 54160), (1780, 43328), (2708, 28480), (2848, 27080), (3385, 22784), (3560, 21664), (5416, 14240), (5696, 13540), (6770, 11392), (7120, 10832)]